CN215814617U - Smoke and heat simulation training path automatic switching device - Google Patents
Smoke and heat simulation training path automatic switching device Download PDFInfo
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- CN215814617U CN215814617U CN202121454103.7U CN202121454103U CN215814617U CN 215814617 U CN215814617 U CN 215814617U CN 202121454103 U CN202121454103 U CN 202121454103U CN 215814617 U CN215814617 U CN 215814617U
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Abstract
The utility model relates to an automatic switching device for a smoke and heat simulation training path. The device comprises a revolving door body, a revolving door device and an electric mortise lock; the revolving door body comprises a metal mesh grid channel outer frame, a revolving door frame and a metal mesh; the door rotating device comprises a driving motor, a swing arm and a protective shell; the electric mortise lock comprises an electromagnetic lock tongue, a magnetic sensor, a lock plate, a grating encoder and a drive control circuit. The automatic path switching device comprises a position feedback device, so that the conversion state of the path can be detected in real time, and the service life and the convenience of the smoke and heat training system are improved.
Description
Technical Field
The utility model belongs to the field of smoke and heat training devices, and particularly relates to an automatic switching device for a smoke and heat simulation training path.
Background
Smoke and heat simulation training is the indispensable training program in the daily training of fire rescue personnel, builds lifelike rescue training environment jointly through analog equipment such as sound, light, cigarette, heat in the smoke and heat training room, and the personnel of participating in the training need wear professional equipment to walk in the metal mesh grid passageway in training process, need develop the training of different degrees of difficulty to different training personnel usually, need manual the route of recovering appointed degree of difficulty before the training. In the existing path switching technology, the switching of the path is realized under the combined action of an electromagnet and a spring, which is commonly used in the smoke-heat training system, and the method has the following disadvantages: 1) the real-time state of the path cannot be monitored in real time, so that the improvement of the training efficiency and the training effect is greatly limited; 2) the electromagnet needs to be always electrified to achieve path conversion, and electric energy is consumed; 3) when the path is recovered, a person is required to enter the grid channel for manual recovery, and a large amount of manpower and training time are consumed; 4) need to be trained personnel to promote the dodge gate in the training process and just can pass through, the electromagnetic lock often receives destruction and the easy tired life of use of spring is short, needs frequent maintenance.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an automatic switching device for a smoke and heat simulation training path, which can realize automatic switching of the path in smoke and heat simulation training, effectively reduce the risk of violent damage of training equipment, and effectively improve the training efficiency of fire-fighting smoke and heat simulation training.
The technical scheme adopted by the utility model for realizing the purpose is as follows:
an automatic switching device for a smoke and heat simulation training path comprises a revolving door body, a revolving door device and an electric mortise lock; the revolving door body comprises a metal mesh grid channel outer frame, a revolving door frame and a metal mesh, wherein the metal mesh is welded in the revolving door frame, and the revolving door frame is positioned in the metal mesh grid channel outer frame and is hinged with the metal mesh grid channel outer frame; the door rotating device comprises a driving motor, a swing arm and a protective shell, wherein the protective shell is fixed on the outer frame of the metal mesh grid channel, the driving motor is arranged in the protective shell, the output end of the driving motor is externally connected with one side of the swing arm, and the other side of the swing arm is fixed on the rotating door frame; the electric mortiser lock includes the electromagnetism spring bolt, magnetic force sensor and locking plate, electromagnetism spring bolt and magnetic force sensor install respectively in revolving door frame bottom, and the locking plate is fixed in the bottom of metal mesh grid passageway frame, and is located electromagnetism spring bolt and magnetic force sensor's below, corresponds electromagnetism spring bolt and magnetic force sensor's position trompil respectively on the locking plate, installs the permanent magnet in the hole that corresponds with magnetic force sensor, and the hole that corresponds with the electromagnetism spring bolt is used for supplying power magnetism spring bolt when the revolving door body is in the closed condition and inserts.
The swing arm is divided into two sections, the two sections of swing arms are connected through a universal shaft, the output end of the driving motor is connected with one section of swing arm, and the other section of swing arm is fixedly connected with the rotating door frame.
The grating encoder is also arranged in the protective shell, and the grating encoder of the drive control circuit is coaxially arranged with the drive motor; the drive control circuit comprises a controller, and a power supply circuit, a motor drive chip and a CAN communication chip which are respectively connected with the controller, wherein the motor drive chip is connected with a drive motor, and the CAN communication chip is also connected with an upper computer in a control room through a bus.
The power supply circuit comprises a 12V-to-5V voltage reduction chip, a 5V-to-3.3V voltage reduction chip, a 5V connection grating encoder and a 3.3V connection CAN communication chip.
The electric mortise lock also comprises a peripheral power supply circuit, wherein the peripheral power supply circuit comprises a voltage reduction chip and a collection operational amplifier circuit, and the voltage reduction chip reduces the input 12V voltage to 5V voltage and provides the voltage to the magnetic sensor; the 12V voltage supplies power to the electromagnetic lock tongue, the electromagnetic lock tongue is retracted into the lock cavity after the power is on, and the lock is locked after the power is off.
The rotary door frame comprises a rotary door upper side beam, a rotary door middle beam and a rotary door bottom side beam; the upper cross beam of the revolving door is provided with a square steel sheet, and the other side of the swing arm is fixed on the square steel sheet on the revolving door frame; one side of the middle cross beam of the revolving door is provided with a circular wire hole for passing an electric wire; the electromagnetic lock tongue and the magnetic force sensor are respectively arranged at the bottom of the bottom side beam of the revolving door.
The controller adopts an ARM singlechip, and the magnetic sensor adopts a linear magnetic Hall sensor.
The device is vertically arranged in a metal mesh grid for smoke and heat simulation training.
The utility model has the following beneficial effects and advantages:
1. according to the automatic switching device for the smoke and heat simulation training path, the electric revolving door can realize accurate angle rotation and replace manual work to realize path switching.
2. According to the automatic switching device for the smoke and heat simulation training path, the electric mortise lock can lock the revolving door to prevent the path from changing in the training process, and the electric mortise lock is provided with the lock falling feedback, can send a position feedback signal after the lock falling, and is convenient for monitoring the state of the revolving door.
3. According to the automatic switching device for the smoke and heat simulation training path, provided by the utility model, the application universality and compatibility of equipment are improved by adopting the CAN bus; the method is simple in implementation process, the device is simple in structure, convenient to install, longer in service life and higher in stability, is suitable for being installed in metal supports of various metal mesh grid channels, is used for automatically switching smoke and heat training paths, and meets requirements of fire rescue workers on training facilities.
Drawings
FIG. 1 is a schematic diagram of an automatic path switching apparatus according to the present invention;
FIG. 2 is a schematic diagram of a drive control circuit of the present invention;
FIG. 3 is a schematic diagram of the peripheral power supply circuit of the present invention;
FIG. 4 is an initial position of the smoke and heat simulated training revolving door of the present invention;
FIG. 5 is a smoke and heat simulated training revolving door end position of the present invention;
FIG. 6 is a first switching path of the smoke heat simulation training of the present invention;
FIG. 7 is a second switching path for smoke thermal simulation training of the present invention;
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the utility model, but are not intended to limit the scope of the utility model.
As shown in fig. 1, an automatic switching device for a smoke and heat simulated training path comprises a revolving door body 1, a revolving door device 2 and an electric mortise lock 3.
The revolving door body 1 is an outer frame made of square metal through welding, the shape of the outer frame 12 of the revolving door is shown in figure 1, a metal net 13 is welded inside the revolving door frame 12, the outer frame 12 of the revolving door is divided into an upper crossbeam 121 of the revolving door, a middle crossbeam 122 of the revolving door, a bottom crossbeam 123 of the revolving door, a circular wire hole 1221 is formed in the right side of the middle crossbeam 122 of the revolving door, the right square upright of the revolving door frame 12 is connected with the upright of the metal net grid channel shell 11 through a connecting piece 124 (hinged by a pin shaft) up and down, a circular through hole is formed in the bottom crossbeam 123 of the revolving door, and the size of the size is matched with the size of the electric mortise lock 3.
The door rotating device 2 comprises a driving motor 21, a grating encoder 22, a swing arm 23, a driving control circuit 24 and a protective casing 25. The drive motor 21 is a 12V dc brushless motor. The grating encoder 22 and the axis of the direct current brushless motor are on the same straight line, a gear is arranged on the direct current brushless motor, the swing arm is divided into two sections and connected through a universal shaft 231, a mechanical gear is arranged at the rotating axis of the swing arm, a square steel sheet 1211 is arranged at the tail end of the swing arm, and the square steel sheet 1211 is fixed on an upper edge beam of the revolving door through a dovetail screw. As shown in fig. 2, the driving control circuit 24 includes a controller 241, a power supply circuit 242, a motor driving chip 243, and a CAN communication chip 244, and the controller 241 adopts an ARM architecture STM32 single chip microcomputer. The input voltage of the power supply circuit 242 is 12V, the input voltage is stabilized to 5V by adopting an LM2576T-5 voltage stabilization chip in the prior art, the input voltage is stabilized to 3.3V by AMS1117, a 12V power supply supplies power for the direct-current brushless motor, a 5V power supply supplies power for the grating encoder 22, 3.3V supplies power for the controller and a CAN chip, and the CAN communication chip adopts an SIT65HVD230 chip and CAN be compatible with the logic level of the controller. The protective housing 25 is a cuboid, is made of aluminum alloy, and is used for fixing and protecting core components such as the driving motor 21, the grating encoder 22 and the controller 241, and the protective housing 25 is fixed on the upright post of the metal mesh grid channel outer frame 11 through dovetail screws, as shown in fig. 1. The motor driver chip 243 is of the type VNH 5019A.
The electric mortise lock 3 mainly comprises an electromagnetic bolt 31, a magnetic sensor 32, a locking plate 33 and a peripheral power supply circuit 34. The electromagnetic bolt 31 is made of stainless steel and has a length greater than 20 mm; the magnetic sensor 32 adopts a linear magnetic hall sensor and can detect the size of a magnetic field generated by a round magnet; the locking plate 33 is a rectangular steel bar, the central line of the long edge is provided with a circular through hole, the through hole respectively corresponds to the position size of the electromagnetic lock tongue 31 and the magnetic force sensor 32, a circular permanent magnet is embedded at the position of the rectangular steel bar corresponding to the position size of the magnetic force sensor, the size of the circular permanent magnet is the same as that of the circular through hole, and the rectangular steel bar is fixed on the upper surface of a cross beam at the bottom of the metal mesh grid channel outer frame 11 through a dovetail screw; as shown in fig. 3, the peripheral power supply circuit 34 mainly includes a voltage-reducing chip 341 and a collecting operational amplifier circuit 342, the input voltage of the voltage-reducing chip 341 is 12V, and the input voltage is regulated to 5V by using the LM2576T-5 voltage-regulating chip in the prior art; the 12V voltage supplies power to the electromagnetic bolt 31, the bolt 31 retracts into the lock cavity after the power is on, and the lock is locked after the power is off; the 5V voltage supplies power to the linear magnetic Hall sensor, the 0-5V analog output signal of the linear magnetic Hall sensor is connected to the acquisition operational amplifier circuit 342, and the acquisition operational amplifier circuit 342 adopts the mode of an operational amplifier circuit in the prior art and converts the acquired signal into a 0-3.3V analog signal through the TLV2642 operational amplifier chip.
The working process of the automatic switching device for the smoke and heat simulation training path comprises the following steps:
one or a plurality of automatic path switching devices are arranged in a metal mesh grid channel, and a 12V power line and a CAN bus are led out from a smoke and heat simulation training control room. The 12V power line is connected to the power input terminal of the door controller core controller, and the CAN line of the drive control circuit 24 is connected to the CAN bus of the control room.
In the top view of the metal mesh grid channel shown in fig. 4, it is seen that the interior of the metal mesh grid channel contains 2 revolving doors, and the positions of the exit and the entrance are shown in fig. 4, the revolving doors in fig. 4 are named as a number 1 revolving door and a number 2 revolving door in sequence from left to right, and the position in fig. 4 is set as the starting position of the revolving door, and the position in fig. 5 is set as the end position.
The revolving door is rotated to the initial position in the metal mesh channel, the electromagnetic lock tongue 31 and the magnetic force sensor 32 are positioned at the through hole on the lock plate 33 and the magnet is positioned at the proper position, the CAN command is sent and confirmed by the upper computer in the control room, and after the controller 241 of the revolving door device 2 receives the command, the angle theta of the grating encoder 22 at the current position is determined1And the magnetic field intensity detected by the magnetic sensor 32
And storing the data in the controller 241 as the initial position locking condition of the revolving door, and controlling the electromagnetic bolt 31 to eject to complete the locking action of the revolving door after the controller 241 detects that the initial position locking condition is met. Similarly, the revolving door is rotated to the end position in the metal mesh grid channel, the falling locking condition of the end position of the revolving door is completed, and the angle theta of the grating encoder 22 is formed'1And the magnetic field intensity detected by the magnetic sensor 32
Let θ'1>θ1,When the angle theta epsilon (theta) of the grating encoder 22 of the revolving door1,θ′1) When the upper computer in the control room sends a command of recovering to the initial position or the final position through the CAN bus, the controller 241 of the revolving door judges the angle theta of the grating encoder 22 at the current position of the revolving door after receiving the command, and the controller 241 controls the direct current motor to rotate so that the revolving door recovers to the initial position or the final position.
When smoke heat training is carried out and a path shown in fig. 6 is needed, the upper computer in the control room sends a command that the number 1 revolving door is recovered to the end position CAN, the upper computer in the control room sends a command that the number 2 revolving door is recovered to the initial position CAN, and after the number 1 and number 2 revolving doors receive an action command, the motor 21 is driven to rotate and the swing arm 23 is driven to rotate the revolving doors to the designated position, so that the task of automatically switching the path is completed; when carrying out the cigarette hot training, when needing as the route shown in figure 7, the host computer in the control room sends 1 revolving door and resumes initial position CAN instruction, and the host computer sends 2 revolving doors and resumes final position CAN instruction simultaneously, waits for behind 1, 2 revolving doors received the action instruction, driving motor 21 rotates, drives swing arm 23 through gear drive and rotates the revolving door to the assigned position to accomplish the task of automatic switch path.
In summary, the automatic switching device for the smoke and heat simulation training path of the utility model can be used for automatic switching measurement of the smoke and heat simulation training metal mesh training channel path. The switching of the designated path can be accurately and rapidly completed, and the performance is stronger, the processing speed is higher and the stability is more stable by adopting the control chip of the ARM architecture; the automatic path switching device adopts a CAN bus to improve the use universality and compatibility of equipment; this device implementation process is simple, and this device simple structure, simple to operate, life is longer, and stability is higher, is fit for installing the metal support of multiple metal mesh grid passageway for the automatic switch-over of cigarette heat training route satisfies the demand of fire rescue personnel to training facility.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the utility model as defined in the appended claims.
Claims (8)
1. An automatic switching device for a smoke and heat simulation training path is characterized by comprising a revolving door body (1), a revolving door device (2) and an electric mortise lock (3); the revolving door body (1) comprises a metal mesh grid channel outer frame (11), a revolving door frame (12) and a metal mesh (13), wherein the metal mesh (13) is welded in the revolving door frame (12), and the revolving door frame (12) is positioned in the metal mesh grid channel outer frame (11) and is hinged with the metal mesh grid channel outer frame (11); the door rotating device (2) comprises a driving motor (21), a swing arm (23) and a protective shell (25), the protective shell (25) is fixed on the metal mesh grid channel outer frame (11), the driving motor (21) is installed in the protective shell (25), the output end of the driving motor (21) is externally connected with one side of the swing arm (23), and the other side of the swing arm (23) is fixed on the rotating door frame (12); electric mortiser lock (3) are including electromagnetism spring bolt (31), magnetic force sensor (32) and locking plate (33), install respectively in rotatory door frame (12) bottom electromagnetism spring bolt (31) and magnetic force sensor (32), the bottom at metal mesh grid passageway frame (11) is fixed in locking plate (33), and be located the below of electromagnetism spring bolt (31) and magnetic force sensor (32), the position that corresponds electromagnetism spring bolt (31) and magnetic force sensor (32) on locking plate (33) is trompil respectively, install the permanent magnet in the hole that corresponds with magnetic force sensor (32), the hole that corresponds with electromagnetism spring bolt (31) is used for supplying electromagnetism spring bolt (31) to insert when revolving door body (1) is in the closed condition.
2. The automatic switching device for the smoke and heat simulation training path according to claim 1, wherein the swing arm (23) is divided into two sections, the two sections are connected through a universal shaft (231), the output end of the driving motor (21) is connected with one section of the swing arm, and the other section of the swing arm is fixedly connected with the rotating door frame (12).
3. The automatic switching device for the smoke and heat simulation training path according to claim 1, wherein a grating encoder (22) is further installed in the protective shell (25), and a driving control circuit (24) is coaxially installed between the grating encoder and the driving motor (21); the drive control circuit (24) comprises a controller (241), a power supply circuit (242), a motor drive chip (243) and a CAN communication chip (244), wherein the power supply circuit, the motor drive chip (243) and the CAN communication chip (244) are respectively connected with the controller, the motor drive chip (243) is connected with the drive motor (21), and the CAN communication chip (244) is also connected with an upper computer in the control room through a bus.
4. The automatic switching device for the smoke and heat simulation training path according to claim 3, wherein the power supply circuit (242) comprises a 12V to 5V buck chip, a 5V to 3.3V buck chip, a 5V connection grating encoder (22) and a 3.3V connection CAN communication chip (244).
5. The automatic switching device for the smoke and heat simulation training path according to claim 1, wherein the electric latch (3) further comprises a peripheral power supply circuit (34), the peripheral power supply circuit (34) comprises a voltage reduction chip (341) and an acquisition operational amplifier circuit (342), and the voltage reduction chip (341) reduces the input 12V voltage to 5V voltage and provides the voltage to the magnetic sensor (32); the 12V voltage supplies power to the electromagnetic bolt (31), the electromagnetic bolt (31) retracts into the lock cavity after being electrified, and the lock is locked after being powered off.
6. The automatic switching device for the smoke and heat simulation training path according to claim 1, wherein the rotary door frame (12) comprises a rotary door upper cross beam (121), a rotary door middle cross beam (122) and a rotary door bottom cross beam (123); the upper cross beam (121) of the revolving door is provided with a square steel sheet (1211), and the other side of the swing arm (23) is fixed on the square steel sheet (1211) on the revolving door frame (12); one side of the middle cross beam (122) of the revolving door is provided with a circular line hole (1221) for passing through an electric lead; the electromagnetic bolt (31) and the magnetic sensor (32) are respectively arranged at the bottom of the bottom side beam (123) of the revolving door.
7. The automatic switching device of the smoke and heat simulation training path according to claim 3, wherein the controller (241) is an ARM single chip microcomputer, and the magnetic sensor (32) is a linear magnetic Hall sensor.
8. The automatic switching device for the smoke and heat simulation training path according to any one of claims 1 to 7, wherein the device is vertically installed in a metal mesh grid for the smoke and heat simulation training.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121454103.7U CN215814617U (en) | 2021-06-29 | 2021-06-29 | Smoke and heat simulation training path automatic switching device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121454103.7U CN215814617U (en) | 2021-06-29 | 2021-06-29 | Smoke and heat simulation training path automatic switching device |
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| CN215814617U true CN215814617U (en) | 2022-02-11 |
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| CN202121454103.7U Active CN215814617U (en) | 2021-06-29 | 2021-06-29 | Smoke and heat simulation training path automatic switching device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113436494A (en) * | 2021-06-29 | 2021-09-24 | 中国科学院沈阳自动化研究所 | Automatic switching device and method for smoke and heat simulation training path |
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2021
- 2021-06-29 CN CN202121454103.7U patent/CN215814617U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113436494A (en) * | 2021-06-29 | 2021-09-24 | 中国科学院沈阳自动化研究所 | Automatic switching device and method for smoke and heat simulation training path |
| CN113436494B (en) * | 2021-06-29 | 2024-05-10 | 中国科学院沈阳自动化研究所 | Automatic switching device and method for tobacco thermal simulation training path |
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